Author: blass uri
Date: 06:23:30 01/30/00
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On January 30, 2000 at 06:50:55, David Blackman wrote: >On January 30, 2000 at 04:07:51, allan johnson wrote: > >>On January 30, 2000 at 04:05:13, allan johnson wrote: >> >>>How many programmes out there can find the wonderful rook sac in the position >>>below? Neither Rebel Century nor Fritz 5.32 got close within 10 minutes on >>>a Celeron 433 128 mb ram.It comes from a game between G Sax and J Kestler >>>Nice 1974. >[D]r1b1k3/2q1ppb1/2p2n2/3p1PBB/2nP3P/Pp5N/1P2Q1P1/2KR3R b-- >>> If someone thinks the sac is suss please let me know. >>>1... Rxa3 2pxa3 Qa5 3Rd3 Qxa3ch 4Kb1 Bxf5. At this point both Rebel and Fritz >>>were acknowledging white's position is lost. > >I wonder if 3 Rh-f1 might last a little longer? I can't see what Rd3 is supposed >to achieve. > >But apart from that it just looks like a typical position designed to make null >move look bad. Fritz is a famous null-mover. Rebel is claimed not to use >standard recursive null move, but probably uses some other pruning scheme that >has the same problem here. Junior is supposed to do no null moves for the first >few moves. Perhaps it would understand this. 1)Junior also use prunning and everyone is using prunning. Null move is not the problem here. 2)You probably meant 3.Rdf1 and not 3.Rhf1 chessmaster6000(ss=10) can find Rxa3 after more than 10 minutes and 3.Rhf1 is in the main line Uri
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